# File lib/facter/util/xendomains.rb, line 6 def self.xen_command if File.file?('/usr/lib/xen-common/bin/xen-toolstack') xen_toolstack_cmd = Facter::Util::Resolution.exec('/usr/lib/xen-common/bin/xen-toolstack') if xen_toolstack_cmd xen_toolstack_cmd.chomp else nil end else XEN_COMMANDS.find { |cmd| Facter::Util::Resolution.which(cmd) } end end